# US 11,445,130 B2 · Radiation image capturing apparatus and radiation image capturing system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,445,130 B2 - Document ID: US11445130B2 - Status: Granted - Kind: B2 - Application number: 17/234,254 - Filed: 2021-04-19 - Published: 2021-08-05 - Granted: 2022-09-13 - Earliest claimed: 2018-10-25 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: Satoru Sawada; Kentaro Fujiyoshi - Web page: https://patentgrep.com/patent/US11445130B2 ## CPC - G01T 1/2921: {Static instruments for imaging the distribution of radioactivity in one or two dimensions; Radio-isotope cameras (using scintigraphy G01T1/1641)} - H04N 25/707: Pixels for event detection - A61B 6/00: Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment (instruments measuring radiation intensity for application in the field of nuclear medicine, e.g. in vivo counting, G01T1/161) - G01T 1/247: {Detector read-out circuitry (for processing gain or off-set correction H04N)} - H04N 23/30: for generating image signals from X-rays - H04N 25/78: Readout circuits for addressed sensors, e.g. output amplifiers or A/D converters - G01T: MEASUREMENT OF NUCLEAR OR X-RADIATION (radiation analysis of materials, mass spectrometry G01N23/00; tubes for determining the presence, intensity, density or energy of radiation or particles H01J47/00) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A radiation image capturing apparatus includes, as a plurality of pixels two-dimensionally arranged in an image capturing area, a plurality of image pixels configured to output electric signals for acquiring a radiation image and a plurality of detection pixels configured to output electric signals for detecting information about irradiation of the image capturing area with the irradiation. The plurality of detection pixels is arranged as a line-shaped detection pixel group in the image capturing area, and a plurality of detection driving lines is connected to the line-shaped detection pixel group. A readout circuit reads out, at different timings, the electric signals group by group to each of which a different one of the plurality of detection driving lines is connected in the line-shaped detection pixel group. ## Claims ### Claim 1 A radiation image capturing apparatus, comprising: a plurality of pixels two-dimensionally arranged in an image capturing area and configured to convert incident radiation into electric signals; a plurality of driving lines for driving the plurality of pixels; and a readout circuit configured to read out the electric signals of the plurality of pixels, wherein the plurality of pixels includes a plurality of first pixels configured to output the electric signals for acquiring a radiation image and a plurality of second pixels configured to output the electric signals for detecting information about irradiation of the image capturing area with the irradiation, wherein the plurality of second pixels is arranged as a line-shaped second pixel group in the image capturing area, and the plurality of driving lines is connected to the line-shaped second pixel group, and wherein the readout circuit reads out, at different timings, the electric signals group by group to each of which a different one of the plurality of driving lines is connected in the line-shaped second pixel group. ### Claim 2 (depends on 1) The radiation image capturing apparatus according to claim 1, further comprising a driving signal supply circuit configured to supply driving signals to the plurality of driving lines connected to the line-shaped second pixel group at different timings. ### Claim 3 (depends on 2) The radiation image capturing apparatus according to claim 2, wherein the driving signal supply circuit sequentially supplies the driving signals to the plurality of driving lines connected to the line-shaped second pixel group. ### Claim 4 (depends on 2) The radiation image capturing apparatus according to claim 2, wherein the driving signal supply circuit further supplies driving signals to the plurality of driving lines connected to the plurality of first pixels. ### Claim 5 (depends on 2) The radiation image capturing apparatus according to claim 2, wherein the driving signal supply circuit is different from a driving circuit that supplies driving signals to the plurality of driving lines connected to the plurality of first pixels. ### Claim 6 (depends on 1) The radiation image capturing apparatus according to claim 1, wherein the plurality of driving lines connected to the line-shaped second pixel group is two driving lines. ### Claim 7 (depends on 1) The radiation image capturing apparatus according to claim 1, wherein, in the line-shaped second pixel group, adjacent two of the plurality of second pixels in a direction of a line formed by the line-shaped second pixel group are each connected to a different one of the plurality of driving lines. ### Claim 8 (depends on 1) The radiation image capturing apparatus according to claim 1, further comprising a plurality of signal lines intersecting with the plurality of driving lines, wherein the readout circuit reads outs the electric signals of the plurality of pixels through the plurality of signal lines, and wherein adjacent two of the plurality of second pixels in a direction of a line formed by the line-shaped second pixel group and adjacent two of the plurality of first pixels in the direction of the line are connected to one of the plurality of signal lines. ### Claim 9 (depends on 1) The radiation image capturing apparatus according to claim 1, wherein the information about irradiation with radiation includes information about at least one of irradiation start of the image capturing area with the radiation, irradiation end of the image capturing area with the radiation, irradiation intensity of the radiation to the image capturing area, and a dose of the radiation to the image capturing area. ### Claim 10 A radiation image capturing system, comprising: the radiation image capturing apparatus according to claim; and a processing apparatus configured to process signals from the radiation image capturing apparatus.